murders of prosecutors in this country are extremely rare, so we sent ana werner to learn more. >> kaufman county assistant district attorney mark hasse was shot multiple times in the parking lot a block from the courthouse. police are looking for one or possibly two suspects witnesses say were dressed in black. police say there was a very short confrontation between gunmen and haas just before the attack. county judge bruce wood. >> just an outstanding person individually, but he was also just a very well-known and very well-respected prosecutor for the district attorney's office. this is just a horrible situation, a horrible tragedy. >> reporter: the 57-year-old hasse had been a prosecutor in the county d.a.'s office for three years. he was earlier a prosecutor in dallas, where he worked on mob cases. investigators do not have a motive, but they described the shooting as a "targeted attack." >> certainly, we have the police, the front line people on

the streets, but whenever it goes to murdering a prosecutor like this, that... that takes it to the next level. >> reporter: kaufman county district attorney mike mcclellan says hasse prosecuted hundreds of cases. what's the part about this that hurts the most? >> the fact that i can't reach out and grab somebody and do something about it right now. because i want them really bad. >> reporter: we called the national district attorney's association, to ask how rare it is for a prosecutor to be murdered in the united states. scott, they knew of only seven examples between 1967 and 2004. >> pelley: and there's a $20,000 reward for information tonight. anna, thank you very much. in chicago, mayor rahm emanuel has ordered a flood of cops into the city's most violent neighborhoods today. there have been seven shootings since last night, but it was the shooting death of a 15-year-old girl just a mile from president obama's chicago home that

prompted this crackdown, and dean reynolds has more. >> hadiya pendleton was shot in the back on tuesday as she and some friends gathered at this park on the way home from high school. targeted, police said, by a gunman who likely thought they were rival gang members trespassing on his turf. damon stewart is hadiya's godfather and a chicago policeman. >> wrong place, wrong time-- one individual walks in, and somebody does a shooting. nothing you can do about it. >> reporter: but the plan announced today to shift 200 police officers from desk jobs to street duty is one initiative designed to saturate gang- infested neighborhoods with law enforcement. >> as we grieve for hadiya, we need to work together to protect our greatest resource-- the children of the city of chicago. >> reporter: but earlier this month, the mayor admitted it will take more than flooding chicago with cops to stop the killing. >> there's an element to that.

there's an element to people's sense of not having any sense of hope. but that doesn't dismiss or permit... >> reporter: or excuse. >> ... and excuse any sense of that violence. >> reporter: hadiya pendleton had a lot of hope. >> hi, my name is hadiya. >> reporter: she was opposed to gangs, and even produced this video back in sixth grade. >> make it your job to say no to gangs and yes to a great future. >> she was a good girl who stayed away from every and any thing that she thought could knock her off her track, and she seemed to be on the track to great things. >> reporter: now, the mayor has asked the community for help in solving her murder, scott. and while the police have received a number of tips, they have yet to make an arrest in this case. >> pelley: dean, thank you. now, here's something we were curious about. so far this month, there have been 42 shooting deaths in chicago, but that is three times as many as in new york city.

we wondered, why the difference. so we asked our senior correspondent, john miller, who is a former deputy commissioner of the new york city police department, to join us from new orleans tonight. john, why is new york city enjoying record-low violence when the violence is so high in chicago, philadelphia, or new orleans? >> reporter: well, you look at new orleans. there's a celebration going on around here. but part of the reality is, this is one of the cities that leads the nation in murder, and the disparity, according to a police executive research forum study that brought all the police chiefs together, was it's what happens to the arrests after they get to court. now, take new york. they have a three- to five-year mandatory minimum. that means that if a gun charge ends up in front of a judge, you're almost certain to go to jail for three years. in chicago, you've got a 50-50 chance that you're not going to do any jail time almost. 33% of those cases are dismissed outright. >> pelley: so if you're caught with a gun in new york, whether you have used it in a crime or not, you're going to jail for three to five years, but not in chicago.

>> reporter: but not in chicago and not in most cities, because they don't have those mandatory minimums, and the prosecutors and the judges exercise that discretion. the bottom line is, if you're a criminal thinking, "do i take that gun when i leave the house today or not?" the risk factor in a lot of major cities is pretty low that, even if you're caught, you're going to do time in jail. >> pelley: john, thanks very much. a five-year-old boy is being held at gun point for a third day in a hostage standoff in midland city, alabama. a 65-year-old man with a history of violent run-ins with his neighbors kidnapped the boy from a school bus. those neighbors identify him as jimmy lee dykes, and police say that he shot and killed the bus driver who tried to shield his students. dykes and the boy are in an underground storm shelter on dykes' rural property. the police are talking to them through a ventilation pipe. overseas tonight, iran is reportedly planning to use new centrifuges that can enrich uranium more quickly.

that could enable it to build an atomic bomb sooner than had been anticipated. the white house called this another provocative step, and we asked david martin to look into it. >> reporter: the 3,000 new centrifuges would take up to a year to install, so iran still has not crossed the threshold to a nuclear weapon. but to david albright, who closely monitors the iranian nuclear program, this is an ominous development. >> it's iran signaling that they're going to dramatically increase their capability to produce enriched uranium, and it's the thing that everyone's been fearing. >> reporter: the new centrifuges, which iran apparently has been able to produce despite international sanctions, could turn out enriched uranium at three to five times the rate of its current centrifuges. once installed and in operation the centrifuges could give iran the capability to make a dash for the bomb faster than the u.s. and its allies could react.

>> one or two weeks, they could have enough for a nuclear weapon, and that's going to be hard to both detect and respond to. >> reporter: the fact that they were trying to break out, wouldn't that still be detectable? >> but it may be detectable after they've finished. >> reporter: he estimates iran could achieve the breakout ability by the middle of 2014. netanyahu has drawn a red line that iran could cross as early as this year. israel's red line is based simply on the amount of uranium iran has enriched. iran's intentions remain a mystery, but one thing is certain-- they keep getting better at enriching uranium. scott. >> pelley: david, thank you very much. iran will be one of the biggest challenges for chuck hagel if he is confirmed as the new secretary of defense. hagel had a rough day today at his senate confirmation hearing. the former republican senator's past statements about iran

israel, and iraq drew hostile questions, and here's wyatt andrews. >> reporter: republicans charge that, in his 12 years as a senator, chuck hagel was too soft on iran and not supportive of israel. hagel was forced to retract one 2006 comment when he said "the jewish lobby intimidates a lot of people up here," meaning congress, a statement that drew questions from senator lindsey graham. >> give me an example of where we've been intimidated by the israeli jewish lobby to do something dumb. regarding the middle east israel, or anywhere else. >> well, i can't give you an example. >> thank you. >> reporter: hagel still rejected the notion he was ever anti-israel. >> we have a special relationship with israel. we always have had. so i never voted in... against israel ever in the 12 years i was in the senate. >> reporter: but the most pointed disagreement was over the 2007 troop surge in iraq.

at the time, hagel called the surge of 30,000 troops the worst u.s. blunder since vietnam, a statement challenged by senator john mccain. >> were you correct in your assessment? >> well, i would defer to the judgment of history to sort that out. >> i think the committee deserves your judgment as to whether you were right or wrong about the surge? >> i'll explain why i made those comments... >> i want to know if you were right or wrong. that's a direct question. i expect a direct answer. >> reporter: hagel explained he opposed the surge because it cost 1,200 lives for a temporary victory. hagel, a former infantry soldier wounded twice in the vietnam war, said every war decision made in washington should consider the soldier first. >> i saw the consequences and the suffering and the horror of war, so i did question a surge. i always ask the question, "is this going to be worth the sacrifice?" because there will be sacrifice. >> reporter: but that was one of the few times hagel rebutted a

direct question. he avoided explaining policy positions so often, republicans complained he hadn't answered basic questions. the administration fired back, scott, saying republicans had focused on trivia. >> pelley: wyatt, thanks very much. in a moment, dr. jon lapook will take an eye-opening look at violence and mental illness, and why so many don't get the treatment they need. and did she lip sync? beyonce's musical answer when the cbs evening news continues.

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>> pelley: connecticut legislators held a hearing on gun violence last night at newtown high school. an eyewitness, mary ann jacob, called for better mental health services for children. we don't know what drove the gunman in newtown to kill, and the fact is that 95% of violent acts are committed by people with no serious mental illness. even so, the shooting has put a spotlight on the treatment for the mentally ill. and here's dr. jon lapook. >> reporter: four years ago, zac pogliano was a fun-loving teenager. he had plenty of friends and played in a rock band. his mother, laura, remembers when he suddenly became paranoid. >> i would come home and bang on my own door after work every day-- "please let me in. it's your mom." and finally, i would crawl through my window. >> reporter: he would lock you out. >> he would lock me out, and

then one day, horribly literally, he opened to the door to me, and i could tell by the look on his face that he did not know who i was. >> reporter: eventually, zac made a confession. >> he said, "did you know i've been hearing voices for a year?" >> reporter: and what went through your head? >> well, i said, "my darling why? why would you not tell your own mother? i would never turn away from you?" he said, "because no one wants a crazy person." >> reporter: zac's fear of telling anyone about the voices delayed his diagnosis. he had schizophrenia. ♪ ♪ this is zac pogliano today. he still loves music, but the disease has forced him to put his life on hold. he's been hospitalized several times. were the voices criticizing you in any way? >> yes. i could tell you that it was a man voice and a woman voice picking on me. >> reporter: schizophrenia usually strikes young adults between the ages of 16 and 30.

not only can they hear voices, they may also suffer from visual hallucinations, delusions, and extreme paranoia. zac can appear robotic and emotionless. those are symptoms of the disease. the medication he takes can worsen those symptoms and also cause weight gain. do you think there's a stigma attached to having mental illness? >> of course. people will judge you, and especially after someone gets assaulted by a crazy guy, i... i could be that crazy guy. >> reporter: zac has never been violent. while about 95% of violence is committed by people with no serious mental illness, those with schizophrenia are two to four times more likely to commit violence than the average person. studies have shown that proper treatment significantly lowers that risk. five days a week, zac goes to an outpatient treatment program at johns hopkins bay view medical center in baltimore. >> so i will see you tomorrow.

>> reporter: christa baker is his therapist. >> we need to look at zac every single day. we need to make sure he is taking his medicine. that makes him think clearly. the longer we can get zac to be doing well, the better the prognosis that he has. >> reporter: do you feel you're on the right track? >> yes, very much so. >> reporter: in what way? >> i'm a 21-year-old man, and i would... i would like to have a steady life with a job and maybe a family some day. >> reporter: what was the biggest misconception that you had? >> that i could fix it. that if i tried hard enough... he would regain his health, and i would... he would be exactly like he was. and that's very hard to accept. >> reporter: zac's story is a reminder that the stigma attached to mental illness makes people ashamed to admit their symptoms. until that stigma is erased there will continue to be a delay in the proper diagnosis and treatment of psychiatric disease.

>> pelley: it took a lot of courage for them to talk to us. doc, thanks very much. beyonce answers the question everyone's been asking, next. >> ♪ and bright stars... they used centrum silver for the study... so i guess my wife was right. [ male announcer ] centrum. always your most complete. to the best vacation spot on earth. (all) the gulf! it doesn't matter which of our great states folks visit. mississippi, alabama, louisiana or florida they're gonna love it. shaul, your alabama hospitality is incredible. thanks, karen. love your mississippi outdoors. i vote for your florida beaches, dawn. bill, this louisiana seafood is delicious. we're having such a great year on the gulf we've decided to put aside our rivalry. now is the perfect time to visit anyone of our states. the beaches and waters couldn't be more beautiful. take a boat ride, go fishing or just

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it was like a red rash. ?p?p like somebody had set a bag of hot charcoal on my neck. i had no idea it came from chickenpox. it's something you never want to encounter. for more of the inside story visit shinglesinfo.com [ tylenol bottle ] nyquil what are you doing? [ nyquil bottle ] just reading your label. wait...you relieve nasal co ? sure don't you? [ nyquil bottle ] dude! [ female announcer ] tylenol® cold multi-symptom nighttime relieves nasal congestion. nyquil® cold and flu doesn't. >> pelley: in new orleans today, beyonce cleared up a mystery that began on inauguration day. mark strassmann has that. >> ♪ o, say can you see... ♪ >> reporter: beyonce's rendition

of the national anthem at president obama's inauguration was perfect-- so perfect, many people assumed she was lip- synching to recorded music. leaders of the marine band admitted they were not playing. >> would you guys mind standing? >> reporter: but the pop superstar said nothing until today. >> ♪ and the rockets' red glare the bombs bursting in air ♪ gave proof through the night that our flag was still there... ♪ >> reporter: when it was over... >> any questions? ( laughter ) >> reporter: ...she said, at the inauguration she had, in fact, sung along to a prerecorded track. >> i did not have time to rehearse with the orchestra. it was a live television show. it was about the president and

the inauguration, and i wanted to make him and my country proud. >> reporter: beyonce promises she will be singing live during her super bowl half time show. scott, she will not be singing the national anthem. >> pelley: mark, thank you. you can see the super bowl right here on cbs. and tomorrow, the "cbs evening news" will come to you from new orleans in jackson square. we'll be right back.

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center with generic finally tonight, when grand central terminal opened in new york city 100 years ago this week, the newspaper headline read, city folks crowd new grand central, ask count less questions." a century later, they are still coming, the crowds and the questions. so seth doane tracked down the man who answers them. >> reporter: it's an architectural marvel, frozen in time spanning 69 acres with 125- foot ceilings, 75-foot windows and italian marble floors. it's been called a temple to transportation. >> the entire population of the entire state of alaska walks you through here every day. >> reporter: danny brucker has been giving rather animated tours of grand central for 25 years. >> it is a palace that celebrates the everyday person walking through.

it was built for them. who isn't in love with it? >> reporter: most people don't think of a train station as a palace. >> well, first of all, it's a terminal. never say station. it's a terminal because trains terminate here. but it is the most magnificent, the most beautiful -- it is a celebration of train transportation that established and built this nation. >> reporter: grand central terminal was built after a 1902 train crash killed 15 people and sparked the cry to move trains under the busy streets of new york city. that required a technological advance, electricity. >> which is why as we look behind us, nothing but bare- naked light bulbs because it was to shout out that this train system was all-electric. >> reporter: by the mid 1960's, the terminal had fallen into disrepair. the owner wanted to replace it with an office building. there was also a call to knock it down, which is what happened to the iconic pennsylvania station across town.

but a famous american came to its rescue. >> i think we all realize how important it is to save these great and beautiful buildings. >> it wasn't until jacqueline kennedy onassis joined that fight and that fight took years, and the supreme court established a landmark conservancy act which saved it. >> reporter: that 1978 ruling cemented historical landmark laws across the country. >> which is the world's largest -- >> reporter: on his tour, brucker highlights the building's secrets. a tennis court on the fourth floor was once the studios for cbs news. >> cbs news headquarters in new york. >> reporter: the centerpiece is in the middle of the 22,000- square-foot concourse. >> every face of that clock is made out of a precious piece of solid opal, a solid jewel. it's been valued at between $10 million to $20 million. talk about a precious gift of time. there it is. >> reporter: it's part of a century old time capsule that

for commuters can transport imaginations twice a day. seth doane, cbs news, new york. >> one of the great buildings. that's the "cbs evening news" for tonight. for all of us at cbs news all around the world, good night. captions by: caption colorado comments@captioncolorado.com >> your realtime captioner: linda marie macdonald. good evening, i'm elizabeth cook. >> i'm ken bastida in for allen martin. three days before the super bowl a supersized apology in new orleans today. 49er cornerback chris culliver doing damage control after comments he made about gay players being unwelcome in the team's locker room. cbs 5 sports director dennis o'donnell is in new orleans with the latest on that story and the rest of the preps under

way in the big easy. >> reporter: just days away from super bowl xlvii. today was the final day that both teams were able to practice or meet the media before sunday's game. it was the chance for him to apologize for the remarks he made on media day. >> what would you like to say to the community of san francisco? >> like i said, i apologize and i'm sorry and that's not what i feel in my heart. that's why i'm addressing the situation now. i hope that i will learn --i in that i will learn and grow from this situation. >> you've aware of chris culliver's comments. what was your feeling? they are not reflective of the organization. what was your feeling? >> you know, i think chris made some dumb insensitive remarks and you have to understand in context, you have a young kid that spoke to the media for an hour. and i think he sort of got too comfortable let something get out that wasn't truly how he felt. >> reporter: culliver had the largest crowd of media around him this morning but he wasn't

the only player to weigh in on the insensitive comments. >> there's a lot of homosexuals out there in the bay area. and, you know, i hope they don't -- i mean, of course they're going to be bothered but i hope they're not affected by a little comment like that because i think in our game of football, you know, it's something that a lot of people say they couldn't tolerate. but it's here. >> i have a brother, you know, that's gay, you know, and, uhm, we all make jokes. you know what i'm saying. we all make comments to each other no matter what it is. hey, you got a boogie in your nose. hey you're a little short. hey you're a little big. you know? so that's going to be part of life. there's good and bad. you know? and we as a country, we as the media, we as a social network, blow everything out of proportion. you know? the fact of the matter, people are real. people have real feelings. you know? so we just have to be very mindful, you know,